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Intertwined polar, chiral, and ferro-rotational orders in a rotation-only insulator
Weizhe Zhang, June Ho Yeo, Xiaoyu Guo, Tony Chiang, Nishkarsh Agarwal, John T. Heron, Kai Sun, Junjie Yang, Sang-Wook Cheong, Youngjun Ahn, Liuyan Zhao
https://arxiv.org/abs/2509.08650

Intertwined polar, chiral, and ferro-rotational orders in a rotation-only insulator
Intertwined orders refer to strongly coupled and mutually dependent orders that coexist in correlated electron systems, often underpinning key physical properties of the host materials. Among them, polar, chiral, and ferro-rotational orders have been theoretically known to form a closed set of intertwined orders. However, experimental investigation into their mutual coupling and physical consequences has remained elusive. In this work, we employ the polar-chiral insulator Ni$_3$TeO$_6$ as a pla…